Privacy Policy
Last updated: 17 June 2026
This policy describes how SurplusNaira (https://surplusnaira.com) collects and uses information when you use our free educational calculators and learning content.
Who we are
SurplusNaira is an educational website that helps Nigerian salary earners estimate monthly surplus after expenses and model hypothetical investment scenarios. We are not a bank, broker, fund manager, tax adviser, or SEC-registered investment adviser. We do not hold money, open accounts for you, or execute trades.
What the app does (and what stays on your device)
When you use SurplusNaira, you may enter information such as:
- Monthly net salary (from your payslip)
- Expense amounts (rent, food, transport, generator, other)
- Investment scenario inputs (monthly amounts, years, growth rates you choose)
- Allocation percentages (emergency fund, markets, cash)
These figures are processed in your web browser. We do not send your salary, expenses, or calculator inputs to our servers, and we do not store them in a database. If you close or refresh the page, that session data is cleared unless your browser restores an unsaved form state on its own.
We also do not:
- Compute PAYE or gross-to-net tax for you
- Require an account, login, or password
- Ask for your BVN, NIN, bank account, or brokerage credentials
- Recommend specific stocks, funds, or guaranteed returns
Information we may collect automatically
Like most websites, our hosting provider may process standard technical data when you visit surplusnaira.com, such as:
- IP address (often truncated or anonymised by the host)
- Browser type, device type, and operating system
- Pages visited and approximate time of visit
- Referring URL (how you arrived at the site)
This data is used to deliver the site securely, prevent abuse, and understand aggregate traffic. It is handled under our hosting provider's terms (currently Vercel, Inc. when deployed).
Local storage in your browser
We use your browser's local storage (not server-side cookies) for:
cookie-consent— whether you accepted the cookie noticead-consent— whether you agreed to optional advertising cookies (only relevant if ads are enabled)
You can clear these at any time via your browser settings (e.g. "Clear site data" for surplusnaira.com). Clearing them will show the consent banner again.
Cookie consent banner
On your first visit, we show a banner explaining that we may use analytics or ads in the future. If you click Accept, we record that choice in local storage as described above. We do not use non-essential tracking cookies until and unless those features are turned on.
Advertising (optional, not active at launch)
We may enable Google AdSense or similar advertising in the future. If enabled:
- Ads load only after you accept the consent banner and ads are enabled in our configuration
- Google and its partners may use cookies to serve and measure ads, subject to Google's policies
- Ad content is separate from our calculator results — sponsors never influence your numbers
At launch, advertising is not enabled and no ad scripts run on the site. See Google's Privacy Policy if ads are enabled later.
Analytics
We use Microsoft Clarity to understand how visitors use the site (e.g. page views, clicks, and scroll behaviour). Clarity may record anonymised session replays and heatmaps. It does not receive the numbers you type into the calculator — those stay in your browser unless you share them yourself.
Clarity loads only after you click Accept on the cookie banner. See Microsoft's Privacy Statement and Clarity terms.
Educational content and external links
Our Learn pages and instrument explainers link to official sites (SEC Nigeria, DMO, NGX, PENCOM, CBN). When you click those links, you leave surplusnaira.com and their privacy policies apply. We are not responsible for third-party websites.
Learn pages may embed YouTube videos when you choose to play them. YouTube's privacy policy applies once the player loads. Embedded videos are separate from our advertising slots.
Our social pages on Facebook, Instagram, TikTok, and YouTube are operated under those platforms' terms.
Children
SurplusNaira is intended for adults managing salary and personal finances. We do not knowingly collect personal information from children under 18. If you believe a child has provided us information, contact us and we will delete it where applicable.
Nigeria Data Protection Regulation (NDPR)
We aim to comply with Nigeria's data protection principles. Because calculator inputs stay in your browser, we minimise personal data processing. Where we process technical or consent data, our lawful bases include:
- Legitimate interest — operating a secure, free educational website
- Consent — optional cookies for ads or analytics, where you click Accept
Depending on applicable law, you may have rights to:
- Ask what data we hold about you
- Request correction or deletion of data we control
- Withdraw consent for optional cookies (clear local storage or contact us)
- Lodge a complaint with the Nigeria Data Protection Commission (NDPC)
Data retention
- Calculator inputs: not retained on our servers
- Consent flags: kept in your browser until you clear them
- Server logs: retained by our host for a limited period per their policy
Security
We serve the site over HTTPS. No system is perfectly secure; do not enter information you are uncomfortable sharing on any website, even though we do not persist your calculator figures server-side.
Changes to this policy
We may update this page when we add features (e.g. ads, analytics, or accounts). The "Last updated" date at the top will change. Continued use after changes means you accept the revised policy.
Contact
Questions about privacy or data requests: surplusnaira@gmail.com
Website: https://surplusnaira.com