How do I calculate loan amortization?

You can calculate loan amortization by determining your monthly payment based on the principal, interest rate, and term, then breaking down each payment into interest and principal portions. Margitrix provides a free Enterprise Loan Calculator that generates full amortization schedules instantly.

How do I estimate my income tax?

Income tax can be estimated by applying your country's progressive tax brackets and deductions to your gross income. Margitrix's Global Tax Calculator supports precise tax rules for 21 countries from 2020 to 2025.

How do I calculate my Etsy profit margin?

To calculate your Etsy profit margin, subtract all fees (listing fee $0.20, transaction fee 6.5%, payment processing ~3%, and any offsite ad fees) plus your cost of goods and shipping from your sale price. Margitrix's free Etsy calculator does this instantly — no signup required.

What fees does Amazon FBA charge?

Amazon FBA fees include a referral fee (typically 8–15% of the sale price), an FBA fulfillment fee based on item size and weight, and optional storage fees. Use Margitrix's Amazon FBA Calculator to get an instant breakdown of all costs and your net profit margin.

Are these calculators free to use?

Yes. All Margitrix calculators — Loan, Tax, Mortgage, Etsy, Amazon FBA, and more — are completely free to use with no signup or account required. All calculations happen instantly in your browser.

TikTok Shop: The Complete Guide to Selling in 2026

TikTok Shop has emerged as one of the most exciting e-commerce opportunities in 2026. With over 1.5 billion monthly active users and native shopping features built directly into the app, TikTok has created a social commerce ecosystem unlike anything that came before it.

What is TikTok Shop?

TikTok Shop is TikTok's integrated e-commerce feature that allows creators and businesses to sell products directly through the app — via shoppable videos, LIVE streams, a dedicated shop tab, and product showcases. Buyers never have to leave TikTok to complete a purchase.

How to Set Up Your TikTok Shop

1Go to TikTok Seller Center and create a seller account
2Choose your seller type: Individual or Business
3Verify your identity and provide bank account details
4List your products with photos, descriptions, and prices
5Link your TikTok creator account to your shop
6Apply for the TikTok Shop Affiliate Program (optional but powerful)

TikTok Shop Fees in 2026

Fee Type	Rate	Notes
Referral Fee	5–8%	Varies by category
Payment Processing	~3%	Included in referral
Affiliate Commission	5–20%	Paid to creators who promote you
Shipping Subsidy	Varies	TikTok sometimes subsidises first orders
Returns	Seller funded	TikTok has a buyer-friendly return policy

What Products Sell Best on TikTok Shop?

TikTok Shop is particularly powerful for visual, demonstrable products. The best-performing categories in 2026 are beauty and skincare, fashion and accessories, home and kitchen gadgets, fitness equipment, and unique/novelty items.

💡 Pro TipProducts that have a 'wow moment' when demonstrated on video — before-and-after results, satisfying transformations, or clever solutions — go viral on TikTok far more easily than purely functional products.

TikTok LIVE Selling

LIVE selling is the highest-converting format on TikTok Shop. During a live stream, viewers can purchase products in real time with a single tap. Top TikTok LIVE sellers host regular, scheduled streams of 1–4 hours, demonstrate products, answer questions, and create urgency through limited-time offers.

The TikTok Shop Affiliate Program

One of TikTok Shop's most powerful features is its affiliate marketplace. Sellers can list their products and allow TikTok creators to promote them in exchange for a commission (typically 10–20%). This means creators do the marketing for you — you only pay when a sale is made. Many brands have scaled to thousands of monthly sales purely through the affiliate programme.

Content Strategy for TikTok Shop Sellers

Post product demonstration videos consistently (daily if possible)
Use trending sounds and effects to increase organic reach
Respond to comments — TikTok's algorithm rewards engagement
Feature user-generated content (UGC) from real buyers
Use the 'shoppable video' feature to tag products in every relevant video
Don't make every video a sales pitch — mix in entertaining/educational content

Is TikTok Shop Worth It in 2026?

Absolutely — especially for sellers with visually appealing products. TikTok Shop has the lowest barrier to viral reach of any commerce platform today. The combination of organic content, LIVE selling, and the affiliate programme creates multiple paths to revenue. Sellers who act now have a significant advantage over those who wait.