Time and Billing Software: Subscription vs One-Time Purchase (the 5-Year Math)

Almost every program a professional needs has moved to a monthly fee. Word processors, storage, tax software — and time and billing is no exception. Sage Timeslips, the desktop standard for decades, now starts around $52 a month. TimeSolv runs about $58 per user per month. Bill4Time starts at $39–49.

The pitch is always the same: "it's only a dollar or two a day." This article does the arithmetic the pitch skips, and lays out honestly when each model wins.

Quick answer

• Over five years, a typical billing subscription costs a solo user $2,400–3,500. A one-time program costs its sticker price once — and HourAndBill is free.
• Subscriptions earn their fee when you need multi-device access, team accounts, cloud backups or card payments.
• One-time purchase wins when you bill from one Windows PC, care where your client data lives, and dislike products that stop working when payments stop.
• The hidden risk is not price — it is control: some subscription products make your own data read-only the day you lapse.

The five-year math

List prices from vendor pricing pages, late August 2026, for one user:

Option	Model	Year 1	5 years
TimeSolv	~$58/month	~$700	~$3,480
Timeslips (Starter)	~$52/month	~$541	~$2,700
Bill4Time (annual billing)	$39/month	$468	$2,340
Time59	$199/year	$199	$995
Toggl Track (paid tier, no invoicing on free)	$9–18/month	~$108–216	~$540–1,080
HourAndBill	free	$0	$0
Spreadsheet	free	$0	$0

Two things stand out. First, the gap is not close: the cheapest full-featured subscription costs more every single year than a one-time program costs total. Second, the spreadsheet row is real — free is a legitimate option, with limits we cover in the billable hours template guide.

At a billing rate of $250 an hour, a $3,480 subscription is about 14 billable hours over five years — paid annually, for software that does the same thing it did last year. Not fortune-changing, but it is a line item you can simply delete.

What a subscription actually buys you

Fair is fair. The monthly fee funds real capabilities:

• Anywhere access. Phone, tablet, courthouse hallway, second office. If you genuinely enter time from multiple devices, this matters.
• Automatic backups. The vendor holds your data; a dead laptop is an inconvenience, not a catastrophe.
• Online payments. Some apps let clients pay invoices by card, which measurably speeds up collections for some practices.
• Multi-user. Assistants and partners in the same database with permissions.
• Continuous updates. Features and fixes arrive without you doing anything.

If you read that list nodding, a subscription fits your practice, and the only question is which one — our Timeslips alternatives comparison covers the field.

What the subscription model costs you besides money

Your data lives on their servers. Client names, matters, rates, invoice histories. For attorneys, that is confidential client information sitting in a third-party cloud under a vendor's security practices and a subpoena's reach. Some professionals are fine with this. Some are not.

The product can change under you. Prices rise, tiers reshuffle, features you rely on move to the higher plan. You have no version to stay on; you are always on today's version at today's price.

And the read-only trap. This is the one Timeslips users know by heart: stop paying, and your own database becomes read-only. You can look at your billing history but not add to it or fix it. The vendor holds your records as gentle leverage for renewal. Before subscribing to anything, ask the vendor in writing: what exactly still works if I cancel?

What one-time purchase actually means

A program you own outright, like HourAndBill, inverts every trade above:

• Your data is a file on your PC. Confidential by geography. Back it up like any document — that responsibility is now yours.
• The program cannot be repriced or lapsed. It works the same in year five as on day one. There is no renewal to miss and nothing to go read-only.
• You bill from one place. No phone entry, no client card payments. Your invoice carries your payment instructions — bank details, check address, or a link from your own payment processor.
• Updates are optional. In our case they are free, and skipping them breaks nothing.

The honest weakness of the model is the flip side of its strength: nobody else is holding your backups, and nobody is adding features monthly. You trade services for ownership.

A decision checklist

Choose a subscription if any of these is true:

1. Two or more people enter time.
2. You regularly capture time away from your desk and a phone app would genuinely get used.
3. You want clients paying invoices by card inside the billing tool.
4. You will not maintain your own backups, honestly.

Choose a one-time program if this sounds like you:

1. You bill from one Windows computer.
2. Client confidentiality makes you uneasy about billing data in a cloud account.
3. You have been burned once by a lapsed subscription or a forced migration.
4. You would rather not pay 14 billable hours' worth of fees to a vendor over five years.

The bottom line

Subscriptions are not a scam; they fund real services that firms and mobile practices genuinely use. But the model quietly became the default for everyone, including the solo professional at one desk who uses none of those services and pays for them every month anyway.

For that person, the old deal was better: install the program, own the program. That is the deal HourAndBill brings back — free, hours and matters and invoices on your own PC, nothing to renew. The Early Access Preview is available today.