# Best retainer billing software for agencies: hours bank, recurring invoices, autopay. > Retainer billing software for agencies: prepaid balances that draw down, an hours bank from time entries, recurring invoices and card autopay. From $29/month. Canonical: https://workspace369.com/solutions/retainer-billing-software-for-agencies/ Last updated: 2026-11-01 The best retainer billing software for agencies catches hours that run out unnoticed, invoices that go out late and clients who forget to pay. Workspace369 does it on every plan with an hours bank, recurring invoices and card autopay; a 5-person agency pays $104/mo on Voyager. 14-day free trial. Card required. After the trial: from $29/month. Renews automatically every month until you cancel. Cancel anytime in Settings → Billing. [See team pricing](https://workspace369.com/solutions/retainer-billing-software-for-agencies/#team-pricing) **$149**a month on Specialist for 10 seats; retainers are on every plan **3 days**notice to the client before each automatic monthly charge **$10**per extra seat from Voyager ![Workspace369 invoice editor showing line items, payment terms, and client details](https://workspace369.com/home/screens/v2/invoice-editor-light.webp) In Workspace369, each retainer holds a balance that draws down as work is billed, your team's time entries show how much of the hours bank is left, recurring invoices go out on their own schedule, and clients who agree to card autopay are charged on the plan's invoice dates. Retainers, recurring invoices and card autopay start at $29/mo on Cadet. Clients can pay by card or ACH bank transfer on every plan. The native app for iPhone and iPad, with iPad in every orientation, opens the same workspace. Key facts Retainer billing for agencies at Workspace369 covers 10 areas, including retainer balances that draw down, hours bank on time entries, recurring invoice plans. The workflow runs in 4 steps, from "create the retainer on the client record" to "collect by autopay, with consent". Workspace369 starts at $29/mo for 1 seat, and the Commander plan includes 20 seats and 120,000 Tokens a month at $299/mo. Additional seats cost $10 each; full pricing is public on the [Workspace369 pricing page](https://workspace369.com/pricing/). ## Where agency retainers leak money ### Nobody knows how many hours are left When the hours bank lives in a spreadsheet, the account manager finds out the retainer is used up after the team has already done the extra work. ### Every month starts with a manual invoice Copying last month's invoice, changing the date and sending it by hand is easy to put off until the client's payment arrives a week later than it should. ### Card payments depend on the client remembering Without autopay the client has to act every month, so a busy client pays two weeks late and someone on your team has to follow up. ## See the workspace your clients feel. 01 ### Proposals to paid invoices Send quotes, bill milestones or retainers, and let automated reminders chase anything outstanding. ![Workspace369 invoice editor showing line items, payment terms, and client details](https://workspace369.com/home/screens/v2/invoice-editor-light.webp) 02 ### Every channel in one inbox Email lands beside the client record on every plan; texts, calls and voicemail join it from Voyager, with AI call summaries from Specialist. ![Workspace369 shared inbox showing email, SMS and voicemail conversations with an AI summary of the open thread](https://workspace369.com/home/screens/v2/shared-inbox-light.webp) 03 ### Client work, organized as projects Tasks, files, and status for every engagement — visible to the team and, through the client portal, to the client. ![Workspace369 project board showing client work organized into stages with owners and status](https://workspace369.com/home/screens/v2/projects-board-light.webp) 04 ### A portal clients actually check Clients watch progress, files, and invoices in a branded portal instead of asking your team for updates. ![Workspace369 client record showing activity, messages, invoices and the next follow-up in one profile](https://workspace369.com/home/screens/v2/client-record-light.webp) ## How an agency retainer runs in Workspace369 01 ### Create the retainer on the client record The retainer holds the client's prepaid balance. It draws down as work is billed against it, and a prepaid balance can be refunded from the same record. 02 ### Log the team's time against it Everyone on the team tracks time with timers or timesheets. Time entries show the hours bank, so the account manager sees what is left before agreeing to more work. 03 ### Let the invoice repeat A recurring invoice plan sends the monthly retainer, hosting or maintenance invoice on its schedule, and billable time can become an invoice without retyping. 04 ### Collect by autopay, with consent Clients agree to card autopay and manage it from a secure page. They get a notice 3 days before every automatic charge, or 7 days before on yearly plans. ## Retainer billing coverage - Set up one real retainer and log a week of team time against it, then check that the account manager can see the hours left without asking anyone. - Set up a recurring invoice and autopay on a test client, and read what the client sees before the first charge. - Count the people who log time. Workspace369 includes 2 seats on Voyager ($74), 10 on Specialist ($149) and 20 on Commander ($299), with extra seats at $10 a month. Retainer balances that draw down Hours bank on time entries Recurring invoice plans Card autopay with client consent Notice before every automatic charge Saved payment methods Team time tracking and timesheets Time-to-invoice Client portal Payment plans (Specialist) ## Priced for the team, not per person. Each team plan includes seats. Retainers, recurring invoices, proposals and client records are on every plan. Extra seats are $10 a month each. Small-team essentials ### Voyager **$74** / month 2 seats included 14-day free trial. Card required. After the trial: $74/month for Voyager. Renews automatically every month until you cancel. Cancel anytime in Settings → Billing. Most agencies ### Specialist **$149** / month 10 seats included 14-day free trial. Card required. After the trial: $149/month for Specialist. Renews automatically every month until you cancel. Cancel anytime in Settings → Billing. Larger operations ### Commander **$299** / month 20 seats included 14-day free trial. Card required. After the trial: $299/month for Commander. Renews automatically every month until you cancel. Cancel anytime in Settings → Billing. USD monthly billing. [Compare all plans](https://workspace369.com/pricing/). Prefer a guided walkthrough first? [Book a demo](https://workspace369.com/contact-sales/). ## Free account setup & migration help Our team sets up your workspace with you and helps move your clients and invoices from the tools you use now. Export your data as a spreadsheet and AI Import maps the columns for you. Support can help with anything unusual. Offer ends December 31, 2026. 14 days free · card required · then $29/mo · cancel anytime After signup, claim free setup in your workspace. ## What reviewers say about Workspace369. ★ 5.0 from 12 ratings on the App Store (as of 2026-10-26) ★★★★★ > **SMB Modernization** > > Great tool for modernizing small businesses. Ability to leverage AI without technical background. Foreman345 · 2026-10-02 · [App Store review](https://apps.apple.com/us/app/id6475013419?see-all=reviews) ★★★★★ > **True all-in-one system** > > It beautifully combined my CRM, team calendar, and billing tools so I could finally stop paying for a bunch of separate software subscriptions samimonroe · 2026-10-02 · [App Store review](https://apps.apple.com/us/app/id6475013419?see-all=reviews) ★★★★★ > **Best app for my construction business** > > Great app. This app solved all my needs! Not only did it help, but it is cheaper than other apps. I highly recommend this app if you want to start organizing and automating your business on another level. Also love the design SebastianBroco · 2024-11-23 · [App Store review](https://apps.apple.com/us/app/id6475013419?see-all=reviews) Quoted exactly as written, in the reviewer’s own language. This is a selection of reviews, not all of them. Reviews from our own team are left out of the selection, but the overall rating includes their ratings. [Read more reviews](https://workspace369.com/customers/)[See all reviews on the App Store](https://apps.apple.com/app/id6475013419) ## See Workspace369 on your own client work. Start your trial, invite the team and, for a limited time, claim free setup and migration help in your workspace. Prefer a walkthrough first? Book a demo. [Book a demo](https://workspace369.com/contact-sales/) ## Put the workflow into practice ## How to choose retainer billing software for an agency ### What is the best retainer billing software for agencies? The best retainer billing software for agencies has four things: a retainer balance that draws down as work is billed, an hours bank the whole team's time feeds, invoices that repeat on their own, and card autopay the client agrees to. Workspace369 does all four on every plan, and a team of up to 10 pays $149 a month on Specialist. ### What is retainer billing software for agencies? Retainer billing software tracks money a client pays in advance and bills ongoing work on a schedule. For an agency it also needs to show the team's hours against the retainer. In Workspace369 a retainer holds a balance that draws down, time entries show the hours bank, recurring invoices repeat on a schedule and card autopay runs with the client's consent. ### Which Workspace369 plan includes retainers? Retainers and deposits, recurring invoices and saved payment methods are on every plan, starting with Cadet at $29 a month for one person. Agencies usually start on Voyager ($74 a month, 2 seats) or Specialist ($149 a month, 10 seats); extra seats are $10 a month each. ### Can clients be charged automatically each month? Yes, after the client agrees to card autopay. The card is then charged on the invoice dates in the plan, and the client gets a notice 3 days before every automatic charge (7 days before on yearly plans). Clients can manage autopay from a secure page. ### How do I see how many retainer hours are left? Log the team's work as time entries against the client. The entries show the hours bank, so you can see what is left before the month ends and decide whether extra work needs a new quote. ### What about work outside the retainer? Bill it separately: turn the extra billable time into an invoice, or send a proposal for the new scope. From Specialist, a change order records the added work and its price and the client approves it by link. ## Related pages ## See where Workspace369 fits into your client-work flow. Start with the modules you need today, then turn on AI, automations, accounting, inventory, requests, and reporting as the operation grows. [Request a demo](https://workspace369.com/contact-sales/)