8 Best GoProposal Alternatives for Accountants (2026)

GoProposal, owned by Sage since 2021, earned its following among UK accountants by bringing structure to pricing: set up your services and pricing rules once, and every proposal comes out priced consistently. But the standalone plans now run from £77.70 to £250 a month, cap how many proposals you can send, and charge separately for smart engagement letters and AML checks. GoProposal also stops at the signature: invoices are pushed to Xero or QuickBooks, payments rely on GoCardless, and the work itself is managed elsewhere. For most firms, Tidyflow is the strongest replacement, putting unlimited proposals, invoicing, card payments, workflow, and a client portal on one flat $39/user/month ($29 billed annually) plan. Here are the 8 best GoProposal alternatives in 2026.

At a Glance: GoProposal Competitors Compared

Why Look for Alternatives to GoProposal?

GoProposal’s pricing engine is genuinely good, and firms that live by a pricing menu rarely regret the discipline it brings. The reasons firms move on are mostly about what it costs and where it stops:

• The price has risen, and caps bite. Solo now starts at £77.70/month for five proposals, and a two-user firm needs Standard (£155.50) to send more than ten a month. Older listings put Solo at £60, so long-time customers have seen the bill climb.
• Add-ons stack up. Compliance-maintained engagement letters (OverSuite, from £50/month) and AML checks (from £39/month plus a fee per ID check) are separate. A two-user firm with both pays about £289/month before VAT.
• It stops at the signature. GoProposal doesn’t issue invoices itself or take card payments. Billing runs through Xero, QuickBooks, or Sage, payments through a GoCardless mandate, and the work through a separate practice management tool.
• Setup takes effort. Reviewers describe the pricing setup as complex and rigid. It rewards firms with a stable, well-defined menu and frustrates those whose pricing varies client by client.

Sage is also folding GoProposal into Sage for Accountants, where proposals are sold as a volume-priced add-on. Standalone plans continue, but the direction of travel is a Sage-only product.

1. Tidyflow

Tidyflow carries a proposal past the signature. Proposals and engagement letters are unlimited on every plan. Each service in your catalog holds a default rate, a client-facing description of what’s included, and its own engagement letter terms, so a proposal built from your services pulls in the right scope and schedule automatically. Proposals can offer A/B/C packages with a recommended option, and clients sign online with an e-signature audit trail.

Once accepted, the proposal bills on acceptance, on job completion, or on a recurring schedule, and Tidyflow issues the invoice itself and syncs it to Xero or QuickBooks Online. Clients pay by card through Stripe at standard processing rates, with a saved card charged automatically for recurring fees. The same client record then holds the workflow for their accounts or Self Assessment, the client portal for documents and questions, time tracking, and billing from WIP. UK workspaces start with ready-made workflows for Self Assessment, company accounts, VAT, payroll, Companies House, and MTD Income Tax, plus a UK engagement letter draft.

• Best For: Firms that want proposals, billing, and the work itself in one place, without a cap on how many proposals they send.
• Key Features: Unlimited proposals with A/B/C packages, engagement letters with service schedules, e-signatures, invoicing with Stripe card payments and auto-charge, Xero and QuickBooks sync, billing from WIP, workflow management with UK templates, client portal and requests, time tracking, Tidyflow Agent.
• Pricing: Core $39/user/month ($29 billed annually), Pro $69/user/month ($55 billed annually). Free 14-day trial, no credit card, no user minimum.
• Why It Beats GoProposal: No proposal caps, no add-on for engagement letters, invoicing and payment collection built in, and workflow and a client portal that GoProposal leaves to other tools.
• Where GoProposal Is Better: Tidyflow has no formula-based pricing engine, so turnover-band or transaction-volume pricing is set per client rather than calculated. Tidyflow doesn’t run AML or ID checks, and UK clients pay by card; Direct Debit collection isn’t built in for UK firms.

2. Cone

Cone is the closest like-for-like swap for GoProposal. It covers pricing, proposals, engagement letters, automatic invoicing, and payment collection through Stripe or GoCardless, with unlimited proposals and clients. Propose plans start at £8/user/month billed annually (£12 monthly), and its Practice plans add lighter workflow and a client portal from £5/user/month annually. Pricing is published in GBP, USD, and AUD.

• Best For: UK and AU firms that want a modern proposals-and-billing tool at a fraction of GoProposal’s price.
• Key Features: Proposals, pricing, engagement letters, automatic invoicing, Stripe and GoCardless payments, unlimited proposals and clients, Xero and QuickBooks integration.
• Downside: Newer platform; the practice management features are lighter than purpose-built tools.

3. FigsFlow

FigsFlow is built for UK practices and is strongest where GoProposal charges extra: engagement letters mapped to ACCA, ICAEW, CIOT, CIMA, AAT, and ATT standards, and AML and ID checks in the same tool. Plans run from £10/month (1 user, 10 proposals) to £150/month (10 users, unlimited proposals), with 20% off annually and ID checks at £3 each.

• Best For: UK firms that want compliant engagement letters and AML in one tool at a lower price.
• Key Features: Proposals, pricing automation, regulator-mapped engagement letters, AML and ID verification.
• Downside: UK-centric, and proposal caps still apply below the top tier.

4. Ignition

Ignition (formerly Practice Ignition) is the tool firms most often weigh GoProposal against. Where GoProposal hands billing to your accounting software, Ignition bills and collects itself: a signed proposal triggers automatic invoicing and payment, including Bacs Direct Debit in the UK, BECS in Australia, and ACH in the US. Pricing is set by active clients, from $39/month (Solo, 20 clients) to $399/month (Pro+, 600 clients) billed annually in the US, with local pricing in the UK and Australia. (See our full Ignition alternatives breakdown.)

• Best For: Firms that want proposals to bill and collect automatically, including by Direct Debit.
• Key Features: Proposals, engagement letters, automatic billing and collection, bulk renewals and price increases, large integration marketplace.
• Downside: Cost climbs with your active client count, payment fees apply on top, and there’s no workflow of its own.

5. Socket

Socket is a UK proposals tool priced by active clients rather than proposals or users, with unlimited proposals, renewals, and users on every plan. It includes pricing, branded proposals with e-signatures, customisable engagement letters, and automated billing through Xero. Pricing runs from £10/month billed annually (£20 monthly) for up to 20 clients, to £50/month annually for up to 500.

• Best For: UK firms that want unlimited proposals and users at a low monthly cost.
• Key Features: Proposals and renewals, pricing, engagement letters, e-signatures, automated billing via Xero, price monitoring.
• Downside: Engagement letter templates, lead pipeline, and other modules are paid add-ons, and cost rises with active client count.

6. Engager

Engager is a UK practice platform that combines proposals, engagement letters, e-signatures, and a client portal, priced by client count from £9+VAT/month (about £89+VAT/month at 250 clients). It positions itself directly against GoProposal for firms that want the client-facing side covered too.

• Best For: UK firms that want proposals and a client portal together at a low price.
• Key Features: Proposals, engagement letters, e-signatures, client portal, Xero sync (paid add-on).
• Downside: UK-focused, with a smaller ecosystem than the larger platforms.

7. Karbon

Karbon isn’t a GoProposal replacement on its own, but it’s the practice management platform GoProposal most often feeds: accepted proposals trigger Karbon work templates. Karbon now has its own Engagements (proposals and engagement letters that collect payment details up front) plus billing and payments, so some firms consolidate onto it and drop GoProposal. Pricing starts at $59/user/month billed annually. (See our Karbon alternatives breakdown, or the head-to-head Tidyflow vs Karbon comparison.)

• Best For: Mid-size firms already running GoProposal into Karbon that want one fewer subscription.
• Key Features: Email triage, workflow, engagements and billing, client portal.
• Downside: Higher per-user cost, and no menu-based pricing engine like GoProposal’s.

8. Anchor

Anchor is a US billing tool with no subscription: it charges $5 on each payment received. A signed proposal becomes an agreement, and Anchor invoices and charges the client by card or ACH automatically. It suits US firms only, as it bills in US dollars. (See our Anchor billing alternatives breakdown.)

• Best For: US firms that want hands-off billing with no fixed monthly cost.
• Key Features: Proposals, agreements, automatic invoicing and collection, broad integrations.
• Downside: US-only, no pricing engine, and the per-payment fee grows with your client list.

What GoProposal Really Costs

GoProposal’s standalone UK plans, excluding VAT:

Add-ons are charged separately: smart engagement letters (OverSuite) from £50/month for 15 letters, and AML from £39/month for 10 assessments, plus a fee per ID check. A two-user firm on Standard with both add-ons at their Standard tiers pays about £289/month before VAT, for proposals and compliance only. In the US, plans run from $75 to $255 a month.

For comparison, a two-person firm on Tidyflow Core pays $78/month ($58 billed annually), with unlimited proposals and engagement letters, invoicing, workflow, and the client portal included. Tidyflow doesn’t include AML checks, so UK firms would keep a separate AML tool.

What to Consider When Choosing a GoProposal Alternative

• Stick with GoProposal if your firm prices strictly from a formula-based menu (by turnover, transactions, or entity type), you’re happy invoicing through Xero or QuickBooks with GoCardless collection, and you’re committed to Sage’s ecosystem.
• Consider Tidyflow if you want proposals to flow into invoicing, workflow, and a client portal on one subscription, and you’re paying for GoProposal plus a separate practice management tool today.
• Consider Cone, Socket, or Engager if you want a like-for-like UK proposals tool without proposal caps, at a much lower monthly cost.
• Consider FigsFlow if compliant engagement letters and AML checks are the main reason you’re on GoProposal’s add-ons.
• Consider Ignition if automatic billing and Direct Debit collection matter more than menu-based pricing.
• Payments: GoProposal collects only through GoCardless Direct Debit. Ignition and Cone support Direct Debit and cards; Tidyflow takes card payments through Stripe in the UK, plus ACH in the US, pre-authorized debit in Canada, and BECS in Australia.
• Switching: GoCardless mandates sit in your own GoCardless account, so ask any new vendor whether it can reuse them before asking clients to sign up again. Rebuild your service list and prices first, then move clients across at their next engagement renewal.

Ready to Move Beyond GoProposal?

GoProposal set the standard for structured pricing in UK practices, and for firms that live by a pricing menu it still does that job well. But if you’re paying more each year for capped proposals and add-ons, and still running billing and the work in other tools, there are better-fitting options. Tidyflow stands out for firms that want unlimited proposals, invoicing, and the rest of the practice on one flat per-user plan. See how it stacks up on our comparison hub, or start a free trial, no credit card required.