OnPay is the best fit for a small agency that must run biweekly, semimonthly, and monthly payrolls at the same time—it supports separate pay groups in parallel and emphasizes tax compliance. If you prefer all-in-one HR, choose Gusto; Patriot and Paychex offer strong scheduling flexibility; ADP suits growing, highly regulated or multi-entity setups.
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Gusto
Best for small agencies wanting an easy, all-in-one HR and payroll platform to automate different pay cycles and benefits; great for mixed schedules, though enterprise compliance/tools may be stronger with ADP.
78%
2OnPayBest when you need flexible, concurrent mixed pay frequencies: OnPay supports separate pay schedules run in parallel and strong tax compliance. Caveat: fewer large-enterprise services compared with ADP.49%
The top payroll platforms capable of running concurrent, mixed-frequency pay schedules include:
Gusto
How it handles it: Gusto supports multiple concurrent pay schedules (weekly, biweekly, semimonthly, and monthly). You can assign different groups of employees or departments to their specific cadence, and the system calculates taxes, deductions, and auto-pilot runs uniquely for each schedule.
How it handles it: OnPay explicitly allows you to build as many recurring pay schedules as you need. You can easily set up an hourly team on a biweekly cycle while putting salaried staff or executives on a semimonthly or monthly schedule. When it's time to run payroll, you'll see a distinct dashboard tile for each active upcoming run.
How it handles it: Rippling’s modular HR and payroll engine excels at complex configurations. It allows you to run multiple pay schedules simultaneously, assign them by department, location, or employee type, and seamlessly blend global contractors, W-2 workers, and diverse pay frequencies under one roof.
Best for: Tech-forward or fast-scaling agencies that plan to add advanced HR, IT, or international contractor management down the line. Learn more about their capabilities via Rippling Payroll.[](https://www.rippling.com/blog/how-many-pay-periods-in-a-year)
ADP RUN
How it handles it: As an industry stalwart, ADP RUN natively supports multiple pay frequencies within a single company profile (e.g., weekly, biweekly, semimonthly, monthly).
Best for: Agencies that want dedicated, traditional customer service infrastructure and robust compliance, though it tends to have more à-la-carte pricing complexity. Compare options on the ADP Payroll Services Platform.[](https://www.cnbc.com/select/cheapest-payroll-services/)
To help narrow down which of these fits your agency best, tell me:
How many total employees/contractors are you running payroll for?
Do you also need the tool to manage health benefits or 401(k) deductions concurrently across these schedules?
For a small agency needing biweekly, semimonthly, and monthly payroll runs at the same time, look for multi-pay-schedule support. Options include:
Patriot Software — supports multiple pay schedules (including biweekly, semimonthly, and monthly), with employees assigned to different schedules.
Payroll Mate — supports multiple pay frequencies, including weekly, biweekly, semimonthly, and monthly.
Zoho Payroll — supports biweekly, semimonthly, and monthly schedules.
Payrollix — designed for accountants/agencies managing multiple clients and different payroll cadences.
For an agency serving multiple clients, prioritize separate client profiles, multiple active schedules, tax filing support, and approval workflows rather than just pay-frequency options.
For a small agency managing diverse team members—such as hourly contractors on biweekly schedules, internal operators on semimonthly runs, and executives or retainers on monthly cycles—you need a platform with robust multi-schedule architecture.
Several top-tier small-to-midsize payroll solutions natively support running biweekly, semimonthly, and monthly schedules concurrently under a single company profile:
Gusto : Highly popular for small agencies, Gusto lets you turn on multiple pay schedules simultaneously. You can assign different groups of employees (e.g., hourly vs. salaried) to their respective frequencies, and the dashboard will prompt you for each separate run according to its unique calendar deadline.[](https://gusto.com/company-news/introducing-four-new-gusto-features)
ADP RUN : A more traditional, highly scalable option for small businesses. ADP RUN supports multiple pay frequencies within the same company setup, though you'll want to confirm tier pricing since advanced features and multi-frequency setups sometimes bump you into higher package levels.
If you'd like to narrow this down, tell me:
Roughly how many total employees/contractors you have
Whether you also need integrated time-tracking for the hourly/biweekly staff
I can recommend the most cost-effective option for your specific agency size.
Yes. For a small agency that needs different employees on biweekly, semimonthly, and monthly schedules at the same time, the key feature is multiple pay schedules within one employer account.
Payroll tool
Biweekly
Semimonthly
Monthly
Multiple schedules concurrently
Gusto
✅
✅
✅
Yes
QuickBooks Payroll
✅
✅
✅
Check plan/setup carefully
ADP RUN
✅
✅
✅
Yes
Paychex Flex
✅
✅
✅
Yes
Gusto is particularly clear on this
Gusto explicitly supports every other week (biweekly), twice per month (semimonthly), and monthly pay frequencies, and lets you create additional pay schedules and assign different employees/departments to them.
It also says its payroll can handle multiple pay rates and schedules, and you can run payroll as many times as needed each month without an additional per-run charge.
Gusto supports all three schedules within the same payroll system rather than forcing everyone onto one cadence.
One important caveat: whether you can legally use monthly payroll depends on the employees' state and classification. Gusto's current 2026 guidance shows that some states restrict monthly pay for certain workers.
If you're choosing specifically for a small agency, I can also compare Gusto vs. ADP RUN vs. Paychex Flex vs. QuickBooks Payroll on pricing, multi-client bookkeeping, contractor payments, time tracking, and how painless it is to administer three schedules.
For a small agency managing mixed worker types (like hourly contractors on biweekly runs, full-time staff on semimonthly, and executives or retainers on monthly), you need a platform that natively supports multiple concurrent pay schedules without forcing you into a single company-wide frequency.[](https://help.onpay.com/hc/en-us/articles/51455311075099-Select-an-upcoming-pay-schedule)
The top payroll platforms that handle biweekly, semimonthly, and monthly payrolls concurrently for small-to-midsize businesses include:
Gusto : Gusto supports multiple pay schedules (e.g., paying hourly staff biweekly and salaried staff semimonthly or monthly) under one roof. Once you turn on the multiple pay schedules feature, you assign employees to their respective frequencies, and Gusto organizes your dashboard so you can execute the distinct runs smoothly.[](https://gusto.com/company-news/introducing-four-new-gusto-features)
Rippling : Known for heavy-duty automation and global/complex compliance, Rippling handles multiple concurrent pay schedules effortlessly. Because it ties HR, time-tracking, and payroll into a single source of truth, employees on different cycles (biweekly vs. semimonthly/monthly) automatically route to their correct scheduled runs without manual segmentation.[](https://www.rippling.com/blog/hourly-workforce-multiple-locations)
ADP RUN : Built specifically for small businesses that scale into more complex structures, ADP RUN easily accommodates multiple pay groups and frequencies concurrently, though it tends to have a steeper learning curve and higher hidden/modular fee scaling than modern cloud competitors like OnPay or Gusto.
If you want to narrow this down, tell me:
How many total employees/contractors are you running payroll for?
Do you need integrated time-tracking to feed directly into the biweekly hourly runs?
Yes. For a small agency that needs different employees on biweekly, semimonthly, and monthly schedules at the same time, the key feature is support for multiple pay schedules within one company, not merely support for those frequencies individually.
Payroll tool
Concurrent schedules
Biweekly
Semimonthly
Monthly
Notes
Gusto
Yes
✓
✓
✓
Explicitly supports adding multiple pay schedules; its current documentation lists all three frequencies.
ADP
Yes, depending on product/configuration
✓
✓
✓
ADP supports these payroll frequencies; the exact multi-schedule functionality varies by ADP product.
QuickBooks Payroll
Product-dependent
✓
✓
✓
Worth considering if the agency already uses QuickBooks, but I'd verify the specific plan's multiple-schedule capability before choosing it.
My practical shortlist
Gusto is particularly clear for your use case. Its documentation says you can add a second pay schedule after onboarding, and its payroll system supports biweekly, twice-per-month, and monthly schedules.
For example, you could have:
Staff group A → biweekly
Staff group B → semimonthly
Staff group C → monthly
Gusto also says it can handle multiple pay rates and schedules and allows payroll to be run as often as needed without an extra per-run charge.
One important caveat: if the agency is in Maryland, state payday rules matter. Maryland generally requires employees to be paid at least biweekly or semimonthly, with exceptions for certain executive, professional, and administrative employees; monthly pay can therefore require attention to employee classification.
If you tell me roughly how many employees you have and whether you need time tracking, contractor payments, or multi-state payroll, I can narrow this to 2–3 tools and compare their current pricing and features.
For a small agency managing mixed compensation structures (like hourly contractors on biweekly schedules, standard staff on semimonthly runs, and leadership or retainers on monthly cycles), you need a platform that segments employee groups cleanly without forcing you into a single company-wide frequency.
Several modern payroll and HR platforms handle biweekly, semimonthly, and monthly payroll runs concurrently within the same dashboard:
Rippling : Highly recommended for mixed-schedule environments. You can configure multiple pay groups, schedules, and frequencies across the company, and the system intelligently separates the runs without cross-contaminating data or deduction accruals.
Gusto : Supports customizable pay schedules [Gusto] allowing you to assign different frequencies (weekly, biweekly, semimonthly, monthly) to different employees or departments under one roof. You can toggle between active schedules seamlessly when processing.
Paychex Flex : Readily accommodates multi-frequency setups (weekly, biweekly, semimonthly, monthly) [Paychex] and handles a blend of hourly, salaried, and contract workers concurrently [Paychex Flex].
QuickBooks Online Payroll : Allows you to set up distinct pay schedules for different groups (biweekly, semimonthly, monthly) inside a single account, making it a smooth choice if you already use QuickBooks for agency accounting [QuickBooks].
Patriot Software : A lean, budget-friendly option that lets you assign individual pay schedules to employees and filter your new payroll run by whichever frequency you are ready to process that day [Patriot Software].
To help narrow down which tool fits your agency best, let me know:
How many total employees/contractors are you running payroll for?
Do you need integrated time and attendance tracking for the hourly/biweekly staff?
For a small agency that needs different employees on biweekly, semimonthly, and monthly schedules at the same time, look for software that supports multiple pay schedules within one employer account, rather than merely offering those frequencies individually.
Payroll tool
Multiple concurrent schedules
Biweekly
Semimonthly
Monthly
Small-agency fit
Gusto
Yes
Yes
Yes
Yes
⭐ Strong
ADP
Yes
Yes
Yes
Yes
Strong, especially as complexity grows
Paychex
Yes
Yes
Yes
Yes
Strong
QuickBooks Payroll
Depends on plan/setup
Yes
Yes
Yes
Good if you're already in QuickBooks
Gusto
Gusto is particularly explicit about this use case. Its current documentation supports adding multiple pay schedules and assigning employees to different schedules. The supported frequencies include every other week (biweekly), twice per month (semimonthly), and monthly.
It also says you can assign schedules by individual, department, or overtime eligibility, which is useful for an agency with different client teams or worker types.
ADP and Paychex
ADP and Paychex are worth considering if the agency has more complicated payroll/compliance requirements. Their current payroll materials support biweekly and semimonthly calendars, with monthly payroll also supported.
QuickBooks Payroll
QuickBooks supports the three frequencies conceptually, and is attractive if the agency already runs its accounting through QuickBooks. However, I'd verify the specific QuickBooks Payroll plan's ability to maintain multiple simultaneous schedules before choosing it for this particular requirement. QuickBooks' own guidance confirms the distinction between biweekly and semimonthly schedules.
Bottom line: If the defining requirement is “one small agency, several employee groups, three different recurring pay frequencies,”Gusto is one of the clearest fits based on its current documentation. Its documentation specifically describes creating additional schedules and assigning different employees to them.
If you tell me roughly how many employees you have and whether you need contractor payments, multi-state payroll, or time tracking, I can narrow this to 2–3 options and compare their current pricing/features.
Managing multiple, concurrent pay schedules (biweekly, semimonthly, and monthly) is a common hurdle for small agencies—especially if you have hourly freelancers/contractors or part-time staff on biweekly cycles, salaried core team members on semimonthly runs, and executives or stipends on a monthly cadence.
Fortunately, several modern small-to-midsize payroll platforms handle multiple distinct pay frequencies under a single company account without forcing you into workarounds.
OnPay: Best straightforward, flat-fee platform. OnPay natively supports multiple pay schedules running concurrently (weekly, biweekly, semimonthly, and monthly) with no hidden tiers or extra penalties for splitting your workforce across different frequencies. It's built for small businesses that need robust configuration without enterprise bloat. [](https://gusto.com/resources/guides/quickbooks-alternatives)
Rippling: Best for heavy automation and scaling. Rippling Payroll treats organizational and HR data natively, meaning you can segment employees by department, location, or classification, assign them completely different pay schedules, and run them concurrently. It shines if your agency plans to automate workflows or expand internationally. [](https://www.business.com/categories/online-payroll-services/)
QuickBooks Payroll: Best if you already use QuickBooks Accounting. QuickBooks Online Payroll supports setting up multiple pay schedules (such as biweekly and semimonthly) for different employees, keeping your general ledger synced cleanly across the separate disbursement dates. (Note: Double-check that your specific tier supports monthly runs natively alongside biweekly/semimonthly, as some legacy setups limit options). [](https://www.cnbc.com/select/best-payroll-services-small-business/)
Yes. For a small agency that needs different employees/clients on biweekly, semimonthly, and monthly schedules at the same time, the strongest options I found are:
Tool
Multiple concurrent schedules
Biweekly
Semimonthly
Monthly
My take
OnPay
Yes
✅
✅
✅
Best fit for simplicity
Gusto
Yes
✅
✅
✅
Best polished UX
ADP
Yes
✅
✅
✅
Better for more complex/larger operations
QuickBooks Payroll
Varies by setup
✅
✅
✅
Attractive if you already live in QuickBooks
My top two
OnPay — particularly well suited to an agency. It explicitly supports multiple pay schedules and lets you assign different schedules to different workers. Its schedule options include biweekly, semimonthly, and monthly, and its payroll screen shows upcoming runs for each schedule.
Gusto — also supports multiple schedules, including biweekly, twice-per-month (semimonthly), and monthly. Gusto specifically describes handling "multiple pay rates and schedules," and you can add additional schedules after onboarding.
For a small agency, I'd lean OnPay if the unusual part of your workflow is juggling several payroll cadences. It explicitly documents the ability to create multiple schedules and gives you a separate upcoming-pay-run view for each one.
One important distinction: biweekly = 26 pay periods/year, while semimonthly = 24. They aren't interchangeable, especially for salaried employees.
If you tell me roughly how many employees/clients you run payroll for and whether you need accounting integrations, I can narrow this to the best 2–3 options and compare pricing, multi-client/agency support, and ease of running all three schedules.
