Stop reconstructing your month from memory.

On the 30th you open a blank invoice and try to remember what you did on the 8th. You round down, because you’d rather lose an hour than argue about one. That’s the leak.

HourToBill is a timer with a client attached to it. Start it, stop it, forget it. At month end it hands you a PDF invoice with every hour itemised, dated and described. Not a CSV. The invoice.

No card. One plan, $12 a month after the trial. No seats, no tiers, no sales call.

RunningNorthgate Retail

Example timer, running, billing Northgate Retail at $95.00 an hour.

Warehouse process review, $95.00/hr$74.73 so far
September invoice, draftHrs · Amount
  • 08 SepSupplier data audit4.50$427.50
  • 12 SepStock reconciliation workshop7.00$665.00
11.50 hours, rounded to 15 min$1,092.50

A working example. Press stop and watch the session become a line.

Three actions. The third one happens without you.

  1. Start a timer against a client

    Pick the client, type one line about what you’re doing, hit start. Your rate is already on the client, so the money is being counted while you work.

  2. Stop it when the call ends

    The entry lands in the month with its date, duration and description. Edit it if you forgot to stop. That’s the entire day-to-day surface of the product.

  3. Month end, it’s a PDF

    Every entry becomes a line on the invoice: date, description, hours, rate, amount. Your details, their details and a total. Download it, send it, get paid.

The invoice is the product.

Clockify is free and it is a good tracker. Toggl is better. Both of them, at the end of the month, hand you a CSV and wish you luck. That CSV is the hour of work you were trying to avoid, and it is where hours get rounded down.

Here the invoice is the reason the timer exists. Every entry is written as if a client will read it, because one will. Itemised hours end the “what exactly am I paying for” email before it’s sent.

The whole product runs at /demo with no account and no email. That includes downloading a real PDF.

A sample invoice: five dated lines for Northgate Retail, 29.5 hours, total $2,802.50.
Invoice
2026-08 · Northgate Retail Ltd
Issued 31 Aug 2026
Due 30 Sep 2026, Net 30
DateDescriptionHrsAmount
04 AugWarehouse process review, site visit6.0$570.00
08 AugSupplier data audit4.5$427.50
12 AugStock reconciliation workshop7.0$665.00
19 AugFindings write-up and recommendations9.0$855.00
26 AugBoard presentation and Q&A3.0$285.00
Hours billed
29.5
Total due
$2,802.50

Quoted a fixed fee? Find out what it paid.

A quoted fee is a bet on how long the work will take. Put the fee on the client and keep the timer running as usual. HourToBill shows what share of the fee your hours have used and the hourly rate the engagement really paid you, so the next quote is priced on evidence rather than hope.

Brand audit, fixed fee
$4,000.00 quoted
Fee used
75%
Real hourly rate
$126.98

31.5 hours worked. At your usual $95 that is 75% of what you quoted.

You are one person. You do not need a Gantt chart.

Search for project management software for consultants and you get tools built for agencies of thirty: task boards, dependencies, capacity planning, approval flows, a client portal nobody logs into. Every one of those features exists to coordinate people who can’t just ask each other. You can ask yourself.

What a solo consultant actually needs to manage is the gap between work done and money received. HourToBill manages exactly that gap and refuses everything else. The list below is not a roadmap. It’s a commitment.

In the product

  • A timer you start against a client
  • Manual entries for the hours you forgot to time
  • Per-client hourly rate, currency and payment terms
  • Billing increments of 6, 15, 30 or 60 minutes
  • A running total of what is unbilled
  • A PDF invoice with every hour itemised
  • Your own logo on the invoice
  • CSV export of every entry and every invoice
  • Your own payment link on the invoice, so clients can pay in one click

Never in the product

  • Task boards, subtasks, dependencies
  • Team members, seats, permissions
  • Client portals nobody logs into
  • Capacity planning and utilisation targets
  • A deal pipeline with stages and a forecast
  • Email sequences and follow-up nudges
  • An upgrade prompt on the feature you need

A client list, not a pipeline.

A CRM for consultants assumes you have a funnel: leads, stages, follow-up sequences, a forecast. Solo consultants mostly don’t. Work arrives through people who already know you, and the “pipeline” is two conversations you’re perfectly capable of remembering.

So HourToBill keeps the only part of a CRM that earns its keep: the client record. Name, contact, address for the invoice, hourly rate, the agreed fee if you quoted one, payment terms, and the full history of every hour you’ve ever billed them.

If you need lead scoring, you’ve outgrown this product, and that’s fine. Nothing here will nag you to upgrade.

Northgate Retail Ltd
Client record
Contact
Accounts payable
Address
40 Bridge Street, Manchester M3 3BT
Rate
$95.00 per hour
Increment
15 minutes
Tax
20%
Terms
Net 30
Billed to date
$18,240.00 across 7 invoices

One plan, because there’s one product.

No free tier that hides the invoice behind an upgrade. No per-client limit that punishes a good month. If one recovered hour a month covers it, the maths is not complicated.

Cancel in one click and your invoices stay downloadable. They’re your records, not ours.

$120per year

$10 a month. 2 months free.

Start free for 14 days

No card to start. Card, no invoice for the invoicing tool. Sorry.

  • Unlimited clients and time entries
  • Unlimited PDF invoices
  • A clickable pay link on every invoice, using your own payment provider
  • Your logo, details and terms on every invoice
  • Export everything as CSV whenever you like
  • Cancel in one click, keep your records

Before you buy.

Questions consultants actually ask.

Is this for teams?

No. One account is one person tracking their own hours. There are no seats, no approvals and no team reporting, which is why the whole product fits on two screens.

What if I forget to start the timer?

Add the entry by hand on the same screen. Type the duration as 1:30, 90m, 1h 30m or 1.5 and all four are read the same way.

Can I edit an invoice after I create it?

You can edit a draft. Once it is marked sent the lines are locked, because that is the document your client already has. Void it and issue a new one if something was wrong.

Do you take a percentage of my invoices?

No. The PDF carries your own payment details and your client pays you directly. None of your fee passes through us.

What happens to my data if I stop paying?

Nothing is deleted. New tracking and new invoices pause, and everything else keeps working: you keep read access to every client, entry and invoice, every invoice PDF stays downloadable, and CSV export is unaffected.

Can I import from Toggl or Harvest?

Not yet. Most people start clean at the beginning of a month and leave the old history where it is.

Your hours are already worked. Go and bill them.