Invoices With "Thank You" Paid 89% [2026 Data Study]

Invoices with a “Thank You” closing line are ultimately paid 89.61% of the time, according to FreshBooks’s analysis of more than 1 million small business invoices, well above the 78.62% baseline paid rate for invoices with no special wording at all. That single phrase does not just read as polite; it correlates with a measurably higher chance of getting paid at all, not just paid faster. Here is what the 2026 data says about why, and how “Thank You” wording stacks up against every other invoice closing line FreshBooks tracked.

Figure 1: Invoices with a “Thank You” closing line are ultimately paid 89.61% of the time. Source: FreshBooks, analysis of more than 1 million small business invoices.

How much more often is a “Thank You” invoice paid?

10.99 percentage points more often, a roughly 14% relative lift over the baseline. FreshBooks’s dataset, built from more than 1 million small business invoices, tracks a metric it calls “ultimately paid”: whether an invoice is paid at all, at any point, regardless of how long it takes. Invoices with no special wording in their payment terms are ultimately paid 78.62% of the time. Add a simple “Thank You” closing line and that climbs to 89.61%. That is a different measure from how fast an invoice gets paid, a separate metric where term length, not wording, does the heavier lifting: invoices with 7-day terms get paid within a week 58.05% of the time versus 40.22% for 30-day terms, a payment-terms effect covered in full in BillyPaid’s payment terms data. Wording and term length are two different levers, and both matter, but wording moves whether an invoice gets paid at all, not just how quickly.

Figure 2: Ultimately-paid rate for invoices with no special wording versus each wording type FreshBooks tracked. Source: FreshBooks, 1M+ invoices analyzed.

Does “Thank You” wording beat “Please” on an invoice?

Yes, but only narrowly. “Thank You” wording is ultimately paid 89.61% of the time, versus 88.07% for “Please,” a gap of just 1.54 percentage points. Both politeness terms land well clear of the 78.62% baseline, and both trail two firmer alternatives: a “14 Days” payment-term note at 91.51% and a stated late-fee “Interest” note at 92.15%, the top performer in the dataset. Lined up together, the pattern reads as a rough ladder rather than a binary choice between polite and firm.

Invoice wording	Ultimately-paid rate	vs. baseline
No special wording (baseline)	78.62%	n/a
”Please”	88.07%	+9.45 pts
”Thank You”	89.61%	+10.99 pts
”14 Days” term note	91.51%	+12.89 pts
”Interest” late-fee note	92.15%	+13.53 pts

Table 1: Ultimately-paid rate by invoice wording, ranked lowest to highest. Source: FreshBooks, analysis of more than 1 million small business invoices.

Why does a two-word phrase change whether an invoice gets paid?

It is not unique to invoicing. Boomerang’s analysis of more than 350,000 email threads found that emails closing with some variation of “Thank You” get a materially higher reply rate than emails that close without one. “Thanks in advance” led at 65.7%, followed by “Thanks” at 63.0% and “Thank you” at 57.9%, all ahead of the 46.0% reply rate for emails with no gratitude closing at all, a 36% relative lift for gratitude wording as a category. An invoice is, functionally, an email asking someone to take an action, and the same courtesy effect that lifts a general email’s reply rate plausibly carries over to whether a client acts on an invoice sitting in their inbox. Neither dataset proves the phrase alone causes the outcome, but two independently sourced studies, one on invoices specifically and one on business email broadly, point in the same direction: a message that reads as individually addressed rather than templated gets acted on more often.

Figure 3: Email reply rate by closing line, from “Thanks in advance” down to no gratitude closing at all. Source: Boomerang, analysis of 350,000+ email threads.

Does “Thank You” wording come close to a late-fee clause?

Closer than the raw percentages suggest. The full range between the 78.62% no-wording baseline and the 92.15% top-performing “Interest” clause is 13.53 percentage points. “Thank You” wording alone closes 10.99 of those points, about 81% of the total gap, without ever mentioning a fee, a due date threat, or any consequence at all. “Please” closes a similar share, about 70% of the gap, at 9.45 points. For a business that does not want every invoice to read like a warning, that is a meaningful finding: most of the benefit of firmer language is available through tone alone.

Figure 4: “Thank You” and “Please” wording measured against the top-performing late-fee wording. Source: FreshBooks, 1M+ invoices analyzed.

Should you pair “Thank You” wording with automated reminders?

Yes, because wording and cadence solve different halves of the same problem. Wording changes the odds that a given invoice gets paid at all; cadence changes how fast a business finds out an invoice is not going to pay itself and starts following up. Businesses running a structured, escalating reminder sequence collect 78% of overdue invoices by day 15, versus 52% for businesses with no defined cadence, according to Chaser’s 2026 Accounts Receivable Report, a survey of 163 finance professionals across the UK, Australia, and more than 20 other countries. That report’s broader effectiveness numbers, including the case for consistent, automated follow-up on every invoice, come from the same underlying dataset. 43% of businesses have adopted AR automation software, and those users get paid within two weeks 71% of the time, versus 47% for manual follow-up. A payment reminder that runs on autopilot can carry the same “Thank You” tone on every send, which matters, since the data above suggests wording is not something to get right once and then abandon under time pressure on reminder four.

Figure 5: Overdue invoices collected by day 15, structured cadence versus no defined cadence. Source: Chaser, 2026 Accounts Receivable Report.

The Bottom Line

Two words move a real number. Invoices with a “Thank You” closing line are ultimately paid 89.61% of the time, against a 78.62% baseline, and that gap holds up whether it is measured against general email behavior or against FreshBooks’s own invoice dataset. It is not the single biggest lever available; an explicit late-fee clause and a structured reminder cadence both move the needle further, and BillyPaid’s complete data guide to getting paid faster covers the rest of that stack. But wording costs nothing to change and takes effect on the very next invoice sent, which makes it one of the easiest fixes on this list to actually make. Every BillyPaid invoice supports a custom closing note by default, so testing a warmer line is a one-time setting change, not a new habit to build.

Frequently Asked Questions

What percentage of invoices with “Thank You” wording get paid? 89.61% of invoices carrying a “Thank You” closing line are ultimately paid, according to FreshBooks’s analysis of more than 1 million small business invoices, well above the 78.62% baseline paid rate for invoices with no special wording at all.

Does “Thank You” wording work better than “Please” on an invoice? Yes, narrowly. “Thank You” wording is paid 89.61% of the time versus 88.07% for “Please,” a gap of 1.54 percentage points, per the same FreshBooks dataset of more than 1 million invoices.

Why does adding “Thank You” to an invoice or reminder change whether it gets paid? Part of the answer is a documented email-behavior effect, not something unique to invoicing. Boomerang’s analysis of more than 350,000 email threads found messages closing with a “Thank You” variation get a 36% higher reply rate than messages with no gratitude closing at all, 62% versus 46%.

Does “Thank You” wording matter as much as pairing an invoice with automated reminders? They solve different problems and work best together. Businesses running a structured, escalating reminder cadence collect 78% of overdue invoices by day 15, versus 52% with no defined cadence, according to Chaser’s 2026 Accounts Receivable Report, while wording changes the odds that any single invoice sent gets paid at all.

Sources and References

1. FreshBooks: Use Your Invoice Payment Terms to Get Paid Faster (analysis of 1M+ small business invoices), ultimately-paid rate by invoice wording and payment-term length.
2. Boomerang: How to End an Email (analysis of 350,000+ email threads, 2017), email reply rate by closing line.
3. Chaser: The 2026 Accounts Receivable Report (163 validated responses, UK/Australia-led, fielded late 2025-early 2026), reminder cadence and AR automation effectiveness data.

Note: All figures verified as of August 2026.