Consultants need more than invoices: contracts that protect scope, time tracking that feeds billing, and tax handling that survives April. Here’s what fits consulting work specifically.
Last updated: 2026-09-25 · Prices verified against official vendor pages.
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Consultants live on contracts, and Bonsai’s library of attorney-reviewed contract templates is unmatched here. Pair that with built-in time tracking that flows into invoices and a $21–$25/mo entry price, and it’s the most consultant-shaped tool on this list.
Watch out: Support is slow and tax features are US-centric.
For consultants who bill hourly: track time against client projects, convert it to invoice lines in one click, and let recurring invoices plus auto-reminders handle retainers and late payers. The least admin per billable hour.
Watch out: The $23 Lite plan caps you at 5 billable clients.
When consulting income means quarterly estimates, 1099s, and an accountant, QuickBooks Online’s $20/mo Solopreneur plan is the pragmatic choice. It’s what your accountant already uses, which makes tax season dramatically easier.
Watch out: Six straight years of price increases; support gets poor reviews.
Proposals, editable contracts with e-signatures, time tracking, and invoicing from $18/mo billed annually — a credible all-in-one for project-based consultants. A signed contract auto-generating its invoice is a genuinely useful trick.
Watch out: Flaky mobile app; product development has slowed since the Fiverr acquisition.
| Tool | Starts at | Free plan | Best for | Review |
|---|---|---|---|---|
| Bonsai Contracts, time tracking, and invoicing in one affordable freelancer workflow. | $25/mo | — | Solo US-based freelancers — developers, designers, consultants — who send contracts regularly and want the full proposal-to-payment lifecycle plus time tracking in one affordable tool. | Review → |
| FreshBooks Effortless invoicing with built-in time tracking for solo service freelancers. | $23/mo | — | Solo service freelancers who bill by time or by project and want effortless invoicing without learning accounting. | Review → |
| QuickBooks Online The industry-standard pick for freelancers with US tax complexity. | $0 (limited free tier) | Free tier: 1 user, 2 invoices per month, income and expense tracking. | Solo service freelancers with US tax complexity whose accountant wants QuickBooks — start with Solopreneur ($20/mo) or Simple Start ($38/mo). | Review → |
| Fiverr Workspace Proposals, contracts, time tracking, and invoicing in one free-or-cheap tool. | $0 | Free plan: limited to 1 active client; no custom branding or editable contracts. | Project-based freelancers — designers, developers, consultants — who want proposals, contracts, time tracking, and invoicing in one free-or-cheap tool. | Review → |
Three things: contract support (scopes of work protect you), time tracking tied to invoicing (for hourly billing), and tax handling (quarterly estimates, 1099s). Bonsai leads on contracts, FreshBooks on time-to-invoice workflow, and QuickBooks on taxes.
Yes — a signed scope of work prevents most payment disputes. Bonsai includes attorney-reviewed contract templates, and Fiverr Workspace offers editable contracts with e-signatures on its Pro plan.
At high rates, one lost invoice or one tax-season scramble costs more than a year of any subscription here. Pick the tool that minimizes your admin time: FreshBooks for hourly billing, QuickBooks if taxes are complex.