What is the best software for running a payroll bureau inside an accounting firm?
Recommending a payroll app to clients is one job. Processing their payroll yourself, every cycle, is another.
Some firms only refer clients to a payroll app and collect a partner discount. This page is for the other kind: firms that process payroll themselves for dozens of clients, own the deadlines and answer the calls when a direct deposit is late. For that work, what matters is how many payrolls one staffer can approve in a morning, how the firm sees every client's filing status at once, and what each client costs you.
The short answer: Payroll Relief is the one platform here built around the firm as processor, with batch tools and a multi-client snapshot. Patriot publishes the clearest per-client accountant pricing. OnPay is the simplest full-service option with partner discounts. Gusto and ADP RUN fit firms that want to share the work with the client or the provider.
If you mostly refer clients and want to compare revenue share and discounts, read our payroll software for accountants ranking instead.
The ranking is editorial: a sponsored placement is always labeled on its listing, and no affiliate link changes a score.
The 5 platforms for firms that process client payroll
The right-hand column says how each platform handles many clients at once. For a bureau, that matters more than the feature list of any single payroll.
| Best for | How it handles many clients | Free plan | Team size | Visit | ||||
|---|---|---|---|---|---|---|---|---|
| 1 | Payroll Relief (AccountantsWorld) | Firm-run volume | Payroll Snapshot tracks upcoming runs and filings across clients | 3.9/5 | On quote | — | Firms processing payroll for many clients | Visit → |
| 2 | Patriot Payroll | Per-client pricing | Price per client drops as your client count grows | 4.0/5 | Full Service from $35.15/mo + $4.75 per worker (Bronze) to $25.90 + $3.50 (Diamond, 100+ clients) | — | Firms with many small clients | Visit → |
| 3 | OnPay | Simple full service | Partner discount rises at 3, 20 and 50 clients | 4.3/5 | $49/mo + $6 per worker; partner discounts of 10%, 15% and 20% | — | Small firms starting a payroll service | Visit → |
| 4 | Gusto Pro | Shared work with clients | Firm dashboard over client-run payroll | 4.1/5 | Client pays Gusto plans; partner tiers up to 20% | — | Firms supervising client-run payroll | Visit → |
| 5 | ADP RUN (Accountant Connect) | Handing off to a provider | Free firm access to client payroll data in ADP | 3.7/5 | Accountant Connect free; RUN on quote | — | Firms moving clients to a provider | Visit → |
Prices read in 2026 on each vendor's official pages. Payroll Relief and ADP RUN publish no price. Scores out of 5 are each tool's score across all our pages; rank measures fit for a firm-run payroll bureau.
Is your tool missing from this page? Email us: hello@hackceleration.com
How we compared and ranked
Most top results for this search mix two different readers: firms that refer clients to a payroll app, and firms that process payroll themselves. We ranked only for the second. A platform made the list if its official documentation shows multi-client management and tax filing on the firm's behalf, or a firm view over every client.
We read vendor product and accountant-program pages, pricing pages where they exist, and firm owners' public accounts of why they keep or drop payroll work. One small US firm, for example, wrote that payroll compliance was drowning it and that it was moving about 100 clients to ADP. That is the trade-off this page helps you make.
Scores are each tool's score across our pages; rank reflects bureau fit. That is why OnPay, the best-scored tool, sits third here.
- Multi-client processingBatch approvals, one view of every client's runs and filings.35 %
- Per-client costPublished accountant pricing and how it scales with client count.25 %
- Client accessAccess levels for clients, employee portal for pay stubs and forms.20 %
- Tax filing coverageFederal, state and local filings and payments handled for the firm.20 %
No affiliate link changes a score or a rank.
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Payroll Relief (AccountantsWorld)
Payroll Relief is built for accounting firms that process payroll, not for business owners. Its official page lists the work a bureau does every cycle: direct deposit, tax payments and filings, electronic child support, batch payroll approval, check printing and year-end W-2 and 1099 processing.
The feature that matters most at volume is the Payroll Snapshot, a single view of upcoming payrolls and of e-filing and tax payment status across clients. A manager can see in one screen which client is late before the phone rings. Firms set access levels per client, and employees get a portal for pay statements and tax forms. Coverage includes federal, all 50 states and local jurisdictions, and payrolls for up to 1,000 employees.
Its limit: no public pricing, so you cannot model your margin before a sales call, and the interface is built for processors rather than for clients who want to run payroll themselves.
Tip: ask for pricing on your real client mix (number of clients, pay frequency, states) and for the fee collection option, which lets you collect payroll fees from clients automatically.
- Payroll Snapshot across clients
- Batch approvals and year-end batches
- Federal, 50 states and local filings
- ✓Made for the firm as processor
- ✓One view of every client's filings
- ✓Client access levels
- ✗No public pricing
- ✗Less suited to client-run payroll
- ✗Fewer public reviews than mainstream apps
The strongest fit for a true payroll bureau. If you would rather have clients run payroll under your supervision, Gusto Pro is the better model.
Patriot Payroll
A payroll bureau lives on margin per client, and Patriot is the only platform here that publishes accountant pricing by tier. Full Service starts at $35.15 a month plus $4.75 per worker at the Bronze level and drops to $25.90 plus $3.50 at Diamond, for firms with 100 or more clients. Each additional state costs $10.
That grid lets you build your own price list in an afternoon: add your time per run to Patriot's cost, and you know the floor you can quote. For a firm whose clients are mostly small employers in one state, the math is predictable.
Its limit: integrations are thinner than Gusto's or ADP's, and multi-state clients add cost quickly.
Tip: plan your client growth around the tier thresholds. Moving up a tier lowers the price of every client, not only the new ones.
- Published accountant tiers
- Lower price per client as you grow
- Full-service tax filing
- ✓Margin easy to model
- ✓Good value for small single-state clients
- ✓Discount applies across all clients
- ✗Fewer integrations
- ✗$10 per extra state
- ✗Less suited to complex clients
The best pick when pricing clarity drives your bureau. For heavier batch tooling, look at Payroll Relief.
OnPay
OnPay keeps things simple: one plan at $49 a month plus $6 per worker, with tax filing included. For a firm starting a payroll service, that simplicity is the point. You can explain the price to a client in one sentence.
The partner program rewards growth: 10% off from 3 clients, 15% from 20 and 20% from 50. It is the scoring leader across our pages, with strong marks for value and support.
Its limit for a bureau: it is built around one employer at a time, so multi-client batch work is lighter than in Payroll Relief.
Tip: start your first clients on OnPay while you measure time per run, then decide whether volume justifies a processor-first platform.
- One flat plan
- Partner discounts up to 20%
- Tax filing included
- ✓Easy to explain to clients
- ✓Strong support
- ✓Good value
- ✗Lighter batch tools
- ✗Discount tiers need volume
- ✗Fewer firm-level reports
A safe start for a new payroll service. Past a few dozen clients, compare it with Payroll Relief.
Gusto Pro
Gusto Pro fits the hybrid model: the client runs or prepares payroll in an interface it likes, and the firm watches every client from one dashboard. That shifts data entry to the client, which is the costliest part of a bureau's month.
Its limit: you are supervising rather than processing, so your fee is advisory, and partner terms are confirmed with Gusto rather than published in full.
Tip: keep Gusto for clients who are organized and want control, and keep processing yourself for the ones who send hours late.
- Firm dashboard
- Client-friendly interface
- Partner tiers up to 20%
- ✓Moves data entry to the client
- ✓Broad integrations
- ✓Well-known brand
- ✗Partner thresholds not published
- ✗Less control over each run
- ✗Support mixed in reviews
Right for supervising client-run payroll, not for a pure bureau.
ADP RUN (Accountant Connect)
ADP is on this page for the firm that chooses to stop processing. Accountant Connect is free for the firm and gives access to client payroll data in ADP, so you keep the advisory work and year-end reporting without running every cycle. Firm owners describe exactly this move when payroll compliance outgrows a small team.
Its limit: RUN is quote only, value scores lag the rest, and the client relationship on payroll shifts to ADP.
Tip: migrate in batches at a quarter end, and keep the clients with the most advisory value in-house.
- Free firm access
- Provider handles processing
- Deep HR packages
- ✓Frees your team from compliance
- ✓Client data still visible
- ✓Scales to larger clients
- ✗Quote-only pricing
- ✗Lower value for money
- ✗You lose the processing fee
The exit door from running payroll yourself, without losing the client.
Three habits that make firm-run payroll profitable
These apply whichever platform you pick.
Set one cutoff for every client's hours
Every cycleA single submission deadline, written into the engagement letter, turns a week of chasing into one batch approval morning.
- Where to write it
- Engagement letter
Split clients into process, supervise or hand off
Once a yearProcess the clients who pay for it, supervise the organized ones in a client-run tool, and hand the low-margin ones to a provider with firm access.
- Hand-off option
- ADP Accountant Connect
Price from your real cost per client
Before quotingAdd the platform's per-client cost to your staff time per run. Patriot's published tiers make this a five-minute exercise.
- Lowest published tier
- $25.90 + $3.50 per worker
Different question? Go further
These pages pick up where this one stops.
Revenue share and discounts compared.
You want to organize client documentsDocument management for accounting firmsCollect and file client paperwork.
Your client wants to run payroll aloneThe best payroll softwareThe business owner's ranking.
Payroll bureau · FAQ
What is a payroll bureau in an accounting firm?
It is a firm that processes payroll for its clients itself: it approves runs, pays and files payroll taxes and answers employee questions. That differs from a firm that only recommends a payroll app. A bureau needs batch tools and a view of every client's filings.Is running client payroll profitable for a small firm?
It can be, if you price from your real cost per client and set one cutoff for hours. Without that, compliance work grows faster than fees, which is why some small firms move clients to a provider such as ADP and keep only advisory work.Which payroll software publishes accountant pricing?
Patriot publishes per-client tiers, from $35.15 a month plus $4.75 per worker down to $25.90 plus $3.50 for firms with 100+ clients. OnPay publishes its client price ($49 plus $6 per worker) and its partner discounts.How large a client can Payroll Relief handle?
AccountantsWorld states it processes payrolls for up to 1,000 employees, with federal, all-state and local tax coverage. That covers most clients a small or mid-size firm serves.Should clients run payroll themselves under firm supervision?
For organized clients, yes: a client-run tool such as Gusto moves data entry to them while your firm reviews. Keep processing yourself for clients who submit late or have complex pay rules.Can a firm keep access to client payroll after moving them to ADP?
Yes. ADP's Accountant Connect is free for the firm and gives access to client payroll data, so you can keep year-end and advisory work.