Email Verification Cost Calculator
What does it really cost to verify your list? Pick a volume and compare published 2026 prices for NeverBounce, ZeroBounce, Kickbox, Emailable, DeBounce, Clearout, Mailgun and more, side by side.
10 providers compared
1Lookupvs
Email verification pricing in 2026 ranges from about $0.75 to $12.00 per 1,000 emails depending on the provider and volume. Verifying 100,000 emails costs $135-$670 at published rates, and per-email cost falls sharply with volume, and this calculator shows each vendor's verified price at your list size.
How many verifications do you need?
At 100,000 verifications, the cheapest published option is DeBounce at $135 (one-time credits). Prices verified September and October 2026 against each vendor's live pricing page.
150,000/mo Starter tier, the nearest published plan covering 100k
$357/mo on subscription
1LookupPhone + email + IP in one creditmonthly plan$799$7.99/1KProfessional plan: includes 250,000 universal credits/mo (phone, email & IP)
No published price at 100K verifications
- NeverBounceBulk rates above 50,000 credits ($250) are only shown in-app
- Mailgun ValidateVolume tiers are no longer published
- BriteVerify (Validity)Pricing not published; contact sales
| Provider | What a unit buys | Free tier | Credit expiry |
|---|---|---|---|
| 1Lookup | 1 universal credit = 1 email verification; the same credits also run phone, IP and domain lookups | Free single lookups at 1lookup.io/tools, no account required | Monthly credits roll over for 3 months |
| NeverBounce | 1 credit = 1 email verification | 10 one-time credits at signup | PAYG credits expire after 12 months |
| ZeroBounce | 1 credit = 1 email verification | 100 validations/mo, refills monthly | Never expire on ZeroBounce ONE; otherwise expiry rules may apply |
| Emailable | 1 credit = 1 verification; unknowns and duplicates refunded | 250 one-time credits at signup | Credits never expire |
| Kickbox | 1 credit = 1 verification; unknown results refunded | First 100 verifications free | Credits expire 1 year after purchase |
| Clearout | 1 credit = 1 email verification (finder and form tools draw 2-4 credits) | 100 one-time credits at signup | PAYG credits never expire; subscription credits roll over |
| DeBounce | 1 credit = 1 verification (catch-all validation draws 10 credits) | 100 one-time credits at signup | Credits never expire |
| Mailgun Validate | Metered add-on to a paid Mailgun sending plan, billed monthly in arrears | None advertised | Metered monthly, nothing to expire |
| Abstract API | Per-API subscription; email validation plans sold at fixed monthly volume points | 100 email validations/mo | Unused plan volume resets each billing period |
| BriteVerify (Validity) | Verification Credit Blocks sold via sales-assisted quotes | None advertised | Credit blocks expire 1 year after purchase |
One balance for phone, email and IP. Every 1Lookup credit runs any lookup type, with no separate subscriptions per channel, and unused monthly credits roll over for 3 months.
How these prices were verified
Every number in this calculator was read from the vendor's live pricing page in September and October 2026, then independently re-checked against the same sources before publishing. Where a vendor doesn't publish a price at a given volume (common above 250,000 emails), we say so instead of estimating. Nothing here is interpolated or guessed.
Prices are the cheapest published route to the selected volume: one-time credit packs where vendors sell them, monthly plans where the volume fits a plan quota, and metered rates where billing is usage-based. Watch the badges: a $49/month plan and a $450 one-time credit pack are different commitments, and credit expiry policies (shown in the table) change the real cost if you verify in bursts.
Spotted a price that's changed? Tell us and we'll re-verify it. For the full head-to-head on any vendor, see the comparison hub.
Email verification pricing FAQ
How much does email verification cost in 2026?
Published prices for verifying 100,000 emails range from $135 (DeBounce) to $649 (ZeroBounce) and $670 (Mailgun Validate), all one-time or metered rates verified in July 2026. At 10,000 emails, prices run from $25 to about $129. Per-verification cost drops sharply with volume on almost every platform, so the right vendor depends heavily on your list size.
How much does NeverBounce cost?
NeverBounce charges $8 per 1,000 emails pay-as-you-go ($0.008 each), with bulk discounts such as 50,000 credits for $250. Its Growth subscription covers up to 10,000 emails a month for $49/month. Pay-as-you-go credits expire 12 months after purchase, and exact bulk rates above 50,000 credits are only shown inside the app.
How much does ZeroBounce cost?
ZeroBounce pay-as-you-go starts at $39 for 2,000 credits ($0.0195 per verification). Verified volume prices: 10,000 verifications cost $129, 100,000 cost $649, 500,000 cost $2,199, and 1,000,000 cost $3,199. The ZeroBounce ONE subscription is $99/month for 10,000 credits a month. Credits never expire, and there is a free tier of 100 validations per month.
Which email verification service is cheapest at high volume?
Among the published prices in this calculator, verified in July 2026, DeBounce is the cheapest at scale: $750 for 1,000,000 verifications (about $0.75 per 1,000). Clearout is next at $1,400 for 1M. Established names like ZeroBounce ($3,199) and Kickbox ($2,999) cost several times more at the same volume.
Do email verification credits expire?
It varies by vendor and matters more than the sticker price. ZeroBounce, Emailable, DeBounce and Clearout credits never expire. NeverBounce and Kickbox pay-as-you-go credits expire 12 months after purchase, and BriteVerify credit blocks are void one year after purchase. Subscription allowances, such as Abstract API's, typically reset every billing month. 1Lookup monthly credits roll over for 3 months.
What does 1Lookup email verification cost?
1Lookup uses universal credits: every plan's credits work for email verification, phone validation, and IP lookups interchangeably. Plans start at $99/month for 20,000 credits ($4.95 per 1,000) and scale to $1,999/month for 1,000,000 credits ($2.00 per 1,000). Unused monthly credits roll over for 3 months, and you can try single lookups free at 1lookup.io/tools.
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