• "ALL IN ONE" business concept

    Work in our space and let us manage complete administration while you focus on profit

  • Advisory

    Finances, accounts, taxes, personal and other corporate consulting by top experts in branch

  • Gathering the IT community

    Learn how our IT solutions and other value-added services simplify your business

  • Co-working space

    New business center with full support for IT and other professionals.
    How does our offer stand out from the rest on the market?

  • 9 rules for successful business

    How we analyze business performance from nine angles

  • Our offer

    Service packages tailored to your needs

Why choose us?

Client first! We are dedicated to reliably solving problems and challenges in the most professional, fastest and most efficient way possible. Our years of experience and professional development instill confidence in our clients. Our team consists of top-quality experts in accounting, tax, human resources, IT solutions and business administration. Our business concept implies supporting our customers as if we were part of their team. We support our clients by releasing time that would be spent on administrative tasks and allowing them enough time to focus on further development of their business.
  • Complete business records and administration

  • Super-comfortable working environment

  • Dedication and commitment to each client

Rules of successful business


Omissions in administration or misinterpretation of legal provisions can cost you dearly, some could bring about bankruptcy or prohibition of businesses. Further, certain laws anticipate criminal charges and prison sentences. Improper reporting of business performance increases the risks. Eliminate all risks, rest assured that your business is legal and sleep peacefully.


To grow your business, all free time should be devoted to marketing and sales. If you do not have enough free time, release it by assigning all these administrative tasks to professionals. The released time should be used to collect information on competitors, demand and supply on the markets, new marketing tools, increasing revenues, etc.


Your expenses should be predictable and on the optimal level. This means that the operational and administrative costs should be minimized and desirably fixed in nature. Consider "online" shopping, quantity discounts, advance payments, outsourcing services, etc.

Cash Flow

Even the most profitable businesses in the world fail if you do not have healthy cash flows. Many profitable companies have gone bankrupt due to poor liquidity, i.e. lack of funds to meet maturing obligations. Consider advances, deferred payments, accelerated settlements (e.g. factoring), leasing, loans and borrowings, alternative funding sources (e.g. crowd-funding) and other possibilities of optimizing cash flows.

Discounts and Rebates

Avoid providing them. Try providing additional value of products and services to your customers and clients for the same price. A happy buyer is a good buyer. The buyer is also always right.

Proper Planning

In business plans, always slightly overestimate costs and underestimate income. This concept of “prudency" is one of the basic principles of accounting. Leave room for unforeseen situations. The above-the-plan results are good news for all involved in the business, you, the banks, suppliers and other investors. The failure to meet the targets set in plan on the other side is bad news and cannot be logically explained due to overestimated or poorly prepared plans because in that case you document that you have not planned your business activities well.


Monitor and analyze the actual results against the plan. Analyze the reasons for the deviations from the plan and act. Make your conclusions and decide which steps to take to improve the results in the future.


Surround yourself with people who radiate positive energy both in private and business situations. Avoid people resistant to change, who emit negative energy and who always say that something "cannot be done".


It is very important to constantly develop and learn. The phrase goes „learn, learn and learn“.

Improve your business

A co-working package of your choice!

Day 1 20.0 20.0 20.0
Day 2 19.0 39.0 19.5
Day 3 18.0 57.0 19.0
Day 4 17.0 74.0 18.5
Day 5 16.0 90.0 18.0
Day 6 15.0 105.0 17.5
Day 7 14.0 119.0 17.0
Day 8 13.0 132.0 16.5
Day 9 12.0 144.0 16.0
Day 10 11.0 155.0 15.5
Day 11 10.0 165.0 15.0
Day 12 9.0 174.0 14.5
Day 13 8.0 182.0 14.0
Day 14 7.0 189.0 13.5
Day 15 6.0 195.0 13.0
Day 16 5.0 200.0 12.5
Day 17 4.8 204.8 12.0
Day 18 4.5 209.3 11.6
Day 19 4.3 213.5 11.2
Day 20 4.0 217.5 10.9
Day 21 3.8 221.3 10.5
Day 22 3.5 224.8 10.2
Day 23 3.3 228.0 9.9
Day 24 3.0 231.0 9.6
Day 25 2.8 233.8 9.6
Day 26 2.5 236.3 9.1
Day 27 2.3 238.5 8.8


Prices are per day and excluding VAT
Opening hours are 9am-9pm and 9am-7pm on Saturdays
In each month the price starts from Day 1 (every next day is cheaper)
Possibility of long-term lease arrangements
For additional services, see under ADDITIONAL SERVICES

Copyright © 2020 Nonagon. All rights reserved.

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Who we are

Nonagon Chartered Accountants d.o.o.

Tax Identity Number & Registration Number:
TIN: 111923323
RN: 21571466

Where’s our office

Kosovska 1,
11000 Belgrade, Serbia

+381 63 526 814
This email address is being protected from spambots. You need JavaScript enabled to view it.