The best SMS gateway in Sri Lanka is the one with the lowest total monthly bill for your kind of traffic, a registered sender ID and reliable delivery reports. On published prices checked on 6 November 2026, Bloomwire was the lowest for transactional SMS at LKR 0.50, while flat-rate providers such as smsgo.lk (LKR 0.54) can be cheaper for purely promotional campaigns.
Updated 6 November 2026
- Published local rates ranged from LKR 0.50 to LKR 0.84 per SMS on 6 November 2026, mostly with taxes included.
- Compare transactional and promotional rates separately. Some providers charge one flat rate, others split them.
- Setup fees, monthly plans and top-up tiers change the real cost more than the headline rate.
- Sinhala and Tamil messages use 70-character parts, so language choice can double or triple your bill.
- A registered sender ID is no longer optional on most networks.
2026 price comparison: Sri Lankan SMS gateways that publish prices
We compared every local provider we could find that publishes its prices on its own website. Prices are as published on 6 November 2026; providers change them, so check the linked page before you buy. We left out providers whose prices we could only find on a competitor's website.
| Provider | Published price per SMS | Setup and monthly fees | Taxes | API and plugins | Strengths |
|---|---|---|---|---|---|
| Bloomwire | LKR 0.50 transactional, LKR 0.70 promotional | No setup fees or monthly charges | Included | REST API and SMPP; WooCommerce guide; Verify API for OTPs | Lowest transactional rate we found; SMS, WhatsApp, AI and voice from one local team; sender ID registration handled |
| text.lk | LKR 0.84 to 0.64, by top-up size (Rs 10,000+ gets 0.64) | Free plan; Business plan LKR 549 a month | Included | REST API; plugins for PHP, Laravel, WooCommerce, Shopify, Zoho, Java and more | Wide plugin range; free brand sender ID; free plan and free demo |
| smsgo.lk | LKR 0.54 flat; LKR 0.52 for 100,000+ packages | No setup, mask or monthly fee | Says VAT, SSCL, CESS and telecom levy are included | REST API with webhooks; Node, PHP, Python and Go SDKs; WooCommerce plugin | Simple flat rate; free test credits; clear statement on levies |
| fitsms.lk | LKR 0.68 economy; LKR 0.52 large-scale (100,000+, ID verification) | No setup, monthly or annual fees; credits don't expire | "All tax inclusive" | API, portal, Shopify and WooCommerce | No business registration needed on the economy plan |
| txtmsg.lk | From LKR 0.59; monthly plans LKR 750 (800 SMS), 1,800 (2,400), 3,500 (5,000) | LKR 3,999 one-time setup on pay-as-you-go | Not stated | API | Bundled monthly plans for small senders |
| Dialog eSMS | Not published ("nominal cost") | No initial setup cost | Not stated | Web portal, Excel upload, scheduling | Operator-run; familiar to many SMEs |
Rates are per SMS part. A long or Sinhala message can use two or three parts, and gateways in Sri Lanka generally bill each part as one SMS. Our Sinhala and Tamil SMS guide shows how much that adds.
What you will actually pay each month
Headline rates hide tiers, plans and setup fees. Here is the published cost of sending 10,000 single-part English SMS in a month, then 100,000. We used each provider's cheapest published option for that volume.
| Provider | 10,000 transactional SMS | 10,000 promotional SMS | 100,000 SMS |
|---|---|---|---|
| Bloomwire | LKR 5,000 | LKR 7,000 | LKR 50,000 transactional |
| smsgo.lk | LKR 5,400 | LKR 5,400 | LKR 52,000 |
| text.lk | LKR 6,900 (0.69 tier), or LKR 6,400 if you top up Rs 10,000 or more | Same as transactional | LKR 64,000 |
| fitsms.lk | LKR 6,800 | LKR 6,800 | LKR 52,000 (large-scale plan) |
| txtmsg.lk | LKR 5,900 plus LKR 3,999 one-time setup | Same as transactional | Not published |
Two patterns stand out. For OTPs, alerts and reminders, Bloomwire's separate transactional rate is the lowest published price. For promotional-only senders, a flat rate of LKR 0.54 can beat a promotional rate of LKR 0.70. If you send both, add up your real mix. See our full bulk SMS cost guide for more examples.
What to compare besides price
A cheap SMS that arrives late, or not at all, costs more than an expensive one that arrives in two seconds. These are the points that separate gateways in practice.
Transactional and promotional routes
OTPs, payment alerts and delivery updates are transactional. Offers and campaigns are promotional. Operators treat them differently, and some networks only carry transactional traffic on certain routes. A provider that separates the two protects your OTPs from campaign queues.
What the price includes
Ask whether the rate includes VAT, SSCL and the 25-cent promotional levy. Most local providers now say "taxes included", but the wording varies. Get the answer in writing.
Sender ID registration
Your brand name as the sender builds trust and reduces "is this a scam?" replies. Check who registers it, how long it takes and whether there is a fee.
API, SMPP and delivery reports
Developers need a REST API with clear errors and delivery receipts. High-volume senders and platforms often prefer SMPP. Read our comparison of SMS gateways, APIs and portals if you are unsure.
Plugins and integrations
If you run WooCommerce, Shopify or an ERP, a ready plugin saves days. text.lk and smsgo.lk publish the widest plugin lists. Bloomwire covers WooCommerce, ERP and CRM integrations through its API and team.
Support and the rest of your channels
Who answers when an OTP fails on a Friday night? A local team that also runs your WhatsApp and voice channels can help you add a second channel for OTPs instead of just telling you to retry.
Sender IDs, levies and the rules that affect your choice
- Registered sender IDs. Twilio's Sri Lanka guidelines say sender ID registration is required for Dialog, Etisalat and Hutch, and that from 29 July 2026 messages with unregistered sender IDs to these networks are blocked. Registration takes about three weeks on international routes.
- Mobitel traffic types. The same guidelines say Mobitel only carries OTP, OTT and transactional traffic on registered sender IDs from international routes. Ask your provider how promotional SMS reach Mobitel users.
- The promotional levy. Since 1 January 2019, a levy of 25 cents applies to each bulk advertisement SMS (Gazette 2104/16).
- Opt-out. In January 2020 the TRCSL directed operators to offer a free opt-out from unsolicited promotional SMS. Put an opt-out in every promotional message.
- Data protection. Parts of the Personal Data Protection Act take effect on 1 January 2027. Read our PDPA guide for SMS and WhatsApp marketers.
Our 2026 guide to sender IDs and rules covers registration step by step.
A buyer's checklist before you sign up
- Estimate your monthly mixSplit volumes into transactional and promotional, English and Sinhala or Tamil. Count parts with our free SMS character counter.
- Ask for the all-in priceGet the per-part rate, with taxes and the promotional levy, in writing.
- Check feesSetup, sender ID, monthly plan and minimum top-up.
- Register your sender ID earlyAllow time for operator approval before your launch or campaign.
- Test deliverySend OTPs to Dialog, Mobitel and Hutch numbers and time them.
- Check the APILook for delivery receipts, clear errors, priority levels and SMPP if you need it.
- Ask about support hoursFind out who you call when messages stop, and how fast they respond.
Which provider fits which business?
- Most of your SMS are OTPs, alerts or reminders
- You need SMPP, priority levels or a Verify API
- You also want WhatsApp, AI chat or a call centre from the same team
- You want a local team to register sender IDs and handle support
- You send only promotional campaigns
- You want a ready plugin for a specific shop platform
- You prefer self-service with no sales contact
- Your volume is small and occasional
Whichever you choose, run a small test before you move your OTP traffic. If you are comparing channels too, our guide to OTP over SMS or WhatsApp shows when WhatsApp is cheaper.
Frequently asked questions
What is the best SMS gateway in Sri Lanka?
There is no single best gateway for everyone. For OTPs and alerts, look for the lowest transactional rate, a registered sender ID and fast delivery reports; Bloomwire publishes LKR 0.50 per transactional SMS with taxes included. For promotional campaigns only, a flat-rate provider such as smsgo.lk (LKR 0.54) can cost less. Compare the full monthly bill, not the headline rate.
How much does an SMS cost in Sri Lanka in 2026?
Published rates from local gateways ranged from LKR 0.50 to LKR 0.84 per SMS on 6 November 2026, usually with taxes included. Volume packages above 100,000 messages fall to about LKR 0.52. Sinhala and Tamil messages use more parts, so the same text can cost two or three times as much.
Is the promotional SMS levy included in the price?
A 25-cent levy applies to each bulk advertisement SMS under Gazette 2104/16 of 2019. Some providers say their rate includes all taxes and levies (smsgo.lk lists VAT, SSCL, CESS and the telecom levy). Ask every provider to confirm in writing what the rate includes for promotional traffic.
Do I need a registered sender ID?
Yes, for brand names. Operators require sender IDs (masks) to be registered, and Twilio reports that since 29 July 2026 messages with unregistered sender IDs to Dialog, Etisalat and Hutch on international routes are blocked. A good local provider registers the sender ID for you.
Can I send Sinhala and Tamil SMS through any gateway?
Most Sri Lankan gateways support Unicode, so Sinhala and Tamil messages deliver correctly. They hold 70 characters in one SMS instead of 160, and 67 per part when longer, so check your length with a counter before you send.
Which gateway is best for OTP messages?
Choose a provider with a transactional route, a high-priority queue, an API with delivery receipts and a fallback plan. Bloomwire offers REST and SMPP APIs with priority levels 0 to 3 and a Verify API for one-time passcodes.
Sources
- text.lk pricing (home page), viewed 6 November 2026
- smsgo.lk pricing, viewed 6 November 2026
- fitsms.lk pricing, viewed 6 November 2026
- txtmsg.lk 2026 pricing guide (14 August 2026)
- Dialog eSMS product page
- Twilio: Sri Lanka SMS guidelines
- Gazette 2104/16: Levy on Mobile Short Message Services Regulations
- Sunday Times: TRCSL pushes for opt-out options (19 January 2020)
- DataReportal: Digital 2026 Sri Lanka
- Twilio: SMS character limits
